Show simple item record

dc.contributor.authorGardiner, Camilla
dc.contributor.authorClough, Timothy J.
dc.contributor.authorCameron, Keith C.
dc.contributor.authorDi, Hong J.
dc.contributor.authorEdwards, Grant
dc.contributor.authorde Klein, C. A. M.
dc.date.accessioned2018-11-26T03:01:24Z
dc.date.available2018-06-21en
dc.date.issued2018-07
dc.date.submitted2018-05-07en
dc.identifier.issn0047-2425en
dc.identifier.urihttps://hdl.handle.net/10182/10369
dc.description.abstractUrea, the dominant form of N in ruminant urine, degrades in soil to produce N2O emissions. However, the fate of non-urea urine N compounds (NUNCs) in soil and their contribution to urine patch N2O emissions remain unclear. This study evaluated five NUNCs: allantoin (10%), creatinine (3%), creatine (3%), uric acid (1%), and (hypo)xanthine (0.6%), where numbers in parentheses represent the average percentage of total urine N. The fates of NUNCs in a pasture soil were determined using 15N-labeled NUNCs in a laboratory trial. Two NUNCs, hypoxanthine and creatine, were added to the soil with perennial ryegrass (Lolium perenne L.) present and sampled over time for soil inorganic N, N2O emissions, and plant N dynamics. The 15N enrichments of soil inorganic N and plant N were significantly increased within 24 h of NUNC application, indicating rapid microbial degradation and plant uptake of NUNCs in pasture soil. An autumn field trial was also conducted to evaluate the in situ impact of varying concentrations of NUNCs on urine patch N2O emissions. Increasing the proportion of urine N excreted as NUNCs did not alter the urine patch N2O emission factor, soil inorganic N concentrations, or plant N uptake. It is concluded that NUNCs rapidly degrade in pasture soil and that an increased ruminant excretion of urine N as NUNCs does not significantly alter the urine patch N2O emission factor.en
dc.format.extent812-819en
dc.language.isoen
dc.publisherAmerican Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
dc.relationThe original publication is available from - American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America - https://doi.org/10.2134/jeq2018.03.0112en
dc.relation.urihttps://doi.org/10.2134/jeq2018.03.0112en
dc.rights© American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.
dc.subjectruminent urineen
dc.subjectAgronomy & Agricultureen
dc.subject.meshUrineen
dc.subject.meshAnimalsen
dc.subject.meshRuminantsen
dc.subject.meshLoliumen
dc.subject.meshNitrogenen
dc.subject.meshNitrous Oxideen
dc.subject.meshUreaen
dc.subject.meshSoilen
dc.titleAssessing the impact of non-urea ruminant urine nitrogen compounds on urine patch nitrous oxide emissionsen
dc.typeJournal Article
lu.contributor.unitLincoln University
lu.contributor.unitFaculty of Agriculture and Life Sciences
lu.contributor.unitDepartment of Soil and Physical Sciences
lu.contributor.unitVice Chancellor's Office
dc.identifier.doi10.2134/jeq2018.03.0112en
dc.relation.isPartOfJournal of Environmental Qualityen
pubs.issue4en
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/SOILS
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/QE18
pubs.organisational-group/LU/Vice Chancellor's Office
pubs.publication-statusPublisheden
pubs.volume47en
dc.identifier.eissn1537-2537en
lu.identifier.orcid0000-0002-5978-5274
lu.identifier.orcid0000-0002-7631-1636
lu.identifier.orcid0000-0002-6966-0299
lu.identifier.orcid0000-0003-4165-007X


Files in this item

Default Thumbnail

This item appears in the following Collection(s)

Show simple item record